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https://www.readbyqxmd.com/read/29925688/intravascular-hemolysis-activates-complement-via-cell-free-heme-and-heme-loaded-microvesicles
#1
Nicolas S Merle, Anne Grunenwald, Helena Rajaratnam, Viviane Gnemmi, Marie Frimat, Marie-Lucile Figueres, Samantha Knockaert, Sanah Bouzekri, Dominique Charue, Remi Noe, Tania Robe-Rybkine, Marie Le-Hoang, Nathan Brinkman, Thomas Gentinetta, Monika Edler, Sara Petrillo, Emanuela Tolosano, Sylvia Miescher, Sylvain Le Jeune, Pascal Houillier, Sophie Chauvet, Marion Rabant, Jordan D Dimitrov, Veronique Fremeaux-Bacchi, Olivier P Blanc-Brude, Lubka T Roumenina
In hemolytic diseases, such as sickle cell disease (SCD), intravascular hemolysis results in the release of hemoglobin, heme, and heme-loaded membrane microvesicles in the bloodstream. Intravascular hemolysis is thus associated with inflammation and organ injury. Complement system can be activated by heme in vitro. We investigated the mechanisms by which hemolysis and red blood cell (RBC) degradation products trigger complement activation in vivo. In kidney biopsies of SCD nephropathy patients and a mouse model with SCD, we detected tissue deposits of complement C3 and C5b-9...
June 21, 2018: JCI Insight
https://www.readbyqxmd.com/read/29911130/little-cigars-vs-3r4f-cigarette-physical-properties-and-hphc-yields
#2
Samera H Hamad, Nathan M Johnson, Margaret E Tefft, Marielle C Brinkman, Sydney M Gordon, Pamela I Clark, Stephanie S Buehler
Objective: Our objective was to characterize physical properties and semivolatile harmful and potentially harmful constituent yields in the mainstream smoke (MSS) of 4 popular little cigars compared to the 3R4F reference cigarette. Methods: We used the ISO and Canadian Intense Regimen protocols to generate MSS for Cheyenne (Full Flavor and Menthol) and Swisher Sweets (Original and Sweet Cherry) little cigars; and the 3R4F. We examined physical properties such as length, tobacco filler mass, pressure drop, and ventilation for each product...
October 2017: Tobacco Regulatory Science
https://www.readbyqxmd.com/read/29905770/improved-genomic-island-predictions-with-islandpath-dimob
#3
Claire Bertelli, Fiona S L Brinkman
Motivation: Genomic islands (GIs) are clusters of genes of probable horizontal origin that play a major role in bacterial and archaeal genome evolution and microbial adaptability. They are of high medical and industrial interest, due to their enrichment in virulence factors, some antimicrobial resistance genes and adaptive metabolic pathways. The development of more sensitive but precise prediction tools, using either sequence composition-based methods or comparative genomics, is needed as large-scale analyses of microbial genomes increase...
February 23, 2018: Bioinformatics
https://www.readbyqxmd.com/read/29897457/genomic-characterisation-of-an-international-pseudomonas-aeruginosa-reference-panel-indicates-that-the-two-major-groups-draw-upon-distinct-mobile-gene-pools
#4
Luca Freschi, Claire Bertelli, Julie Jeukens, Matthew P Moore, Irena Kukavica-Ibrulj, Jean-Guillaume Emond-Rheault, Jérémie Hamel, Joanne L Fothergill, Nicholas P Tucker, Siobhán McClean, Jens Klockgether, Anthony de Soyza, Fiona S L Brinkman, Roger C Levesque, Craig Winstanley
Pseudomonas aeruginosa is an important opportunistic pathogen, especially in the context of infections of cystic fibrosis (CF). In order to facilitate coordinated study of this pathogen, an international reference panel of P. aeruginosa isolates was assembled. Here we report the genome sequencing and analysis of 33 of these isolates and 7 reference genomes to further characterise this panel. Core genome single nucleotide variant phylogeny demonstrated that the panel strains are widely distributed amongst the P...
June 12, 2018: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29875862/the-role-of-cyp2a6-genetic-polymorphism-in-nicotine-dependence-and-tobacco-consumption-among-bataknese-male-smokers
#5
Noni Novisari Soeroso, Rozaimah Zain-Hamid, Bintang Y M Sinaga, Ahmad Hamim Sadewa, Tamsil Syafiuddin, Elisna Syahruddin, Gino Tann, Erna Mutiara
AIM: This research aimed to analyse the relationship between CYP2A6 gene polymorphism with nicotine dependence and its relation to the number of cigarette consumption among Bataknese smokers. METHOD: This study was a cross-sectional study involving 140 research subjects in Medan, Indonesia. RESULTS: Nicotine dependence rates were found to be significantly associated with the number of cigarette consumption expressed in the Brinkman Index. CONCLUSION: The *1A wild-type alleles have a greater risk of high-very high dependence rate compared to the other variants...
May 20, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29874134/psychological-symptoms-social-outcomes-socioeconomic-attainment-and-health-behaviors-among-survivors-of-childhood-cancer-current-state-of-the-literature
#6
Tara M Brinkman, Christopher J Recklitis, Gisela Michel, Martha A Grootenhuis, James L Klosky
The diagnosis, treatment, and medical late effects of childhood cancer may alter the psychosocial trajectory of survivors across their life course. This review of the literature focuses on mental health symptoms, achievement of social milestones, socioeconomic attainment, and risky health behaviors in survivors of childhood cancer. Results suggest that although most survivors are psychologically well adjusted, survivors are at risk for anxiety and depression compared with siblings. Although the absolute risk of suicide ideation and post-traumatic stress symptoms is low, adult survivors are at increased risk compared with controls...
June 6, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29872088/phototoxic-effects-of-two-common-marine-fuels-on-the-settlement-success-of-the-coral-acropora-tenuis
#7
F Mikaela Nordborg, Florita Flores, Diane L Brinkman, Susana Agustí, Andrew P Negri
Coral reefs are at risk of exposure to petroleum hydrocarbons from shipping spills and uncontrolled discharges during extraction. The toxicity of petroleum hydrocarbons can substantially increase in the presence of ultraviolet radiation (UVR), therefore spills in shallow coral reef environments may be particularly hazardous to reef species. Here we investigated the sensitivity of coral larvae (Acropora tenuis) to dissolved hydrocarbons from heavy fuel oil (HFO) and diesel in the absence and presence of UVR...
June 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29868902/microbial-genomic-island-discovery-visualization-and-analysis
#8
Claire Bertelli, Keith E Tilley, Fiona S L Brinkman
Horizontal gene transfer (also called lateral gene transfer) is a major mechanism for microbial genome evolution, enabling rapid adaptation and survival in specific niches. Genomic islands (GIs), commonly defined as clusters of bacterial or archaeal genes of probable horizontal origin, are of particular medical, environmental and/or industrial interest, as they disproportionately encode virulence factors and some antimicrobial resistance genes and may harbor entire metabolic pathways that confer a specific adaptation (solvent resistance, symbiosis properties, etc)...
June 3, 2018: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/29843187/comparing-part-solid-and-pure-solid-tumors-in-the-tnm-classification-of-lung-cancer-eighth-edition
#9
Keiji Yamanashi, Norihito Okumura, Yoshiharu Yamamoto, Ayuko Takahashi, Takashi Nakashima, Tomoaki Matsuoka
BACKGROUND:  In the eighth edition of the TNM classification, the lung tumors that have the same solid components are categorized either as part-solid or pure-solid tumors. However, this is debatable since the tumors in the same T component categories were evaluated without considering this categorization, and was based on a more malignant behavior and a poorer prognosis of pure-solid tumors. The aim of this study was to investigate and compare the prognosis between part-solid and pure-solid tumors...
May 29, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/29806518/adolescent-and-parental-attitudes-about-return-of-genomic-research-results-focus-group-findings-regarding-decisional-preferences
#10
Michelle L McGowan, Cynthia A Prows, Melissa DeJonckheere, William B Brinkman, Lisa Vaughn, Melanie F Myers
Opportunities to participate in genomic sequencing studies, as well as recommendations to screen for variants in 59 medically actionable genes anytime clinical genomic sequencing is performed, indicate adolescents will increasingly be involved in decisions about learning secondary findings from genome sequencing. However, how adolescents want to be involved in such decisions is unknown. We conducted five focus groups with adolescents (2) and parents (3) to learn their decisional preferences about return of genomic research results to adolescents...
May 1, 2018: Journal of Empirical Research on Human Research Ethics: JERHRE
https://www.readbyqxmd.com/read/29804829/kinetics-and-fidelity-of-the-repair-of-cas9-induced-double-strand-dna-breaks
#11
Eva K Brinkman, Tao Chen, Marcel de Haas, Hanna A Holland, Waseem Akhtar, Bas van Steensel
The RNA-guided DNA endonuclease Cas9 is a powerful tool for genome editing. Little is known about the kinetics and fidelity of the double-strand break (DSB) repair process that follows a Cas9 cutting event in living cells. Here, we developed a strategy to measure the kinetics of DSB repair for single loci in human cells. Quantitative modeling of repaired DNA in time series after Cas9 activation reveals variable and often slow repair rates, with half-life times up to ∼10 hr. Furthermore, repair of the DSBs tends to be error prone...
May 24, 2018: Molecular Cell
https://www.readbyqxmd.com/read/29794230/predictors-of-medication-continuity-in-children-with-adhd
#12
William B Brinkman, Heidi Sucharew, Jessica Hartl Majcher, Jeffery N Epstein
OBJECTIVES: To identify predictors of attention-deficit/hyperactivity disorder (ADHD) medication continuity, hypothesizing greater continuity among children with (1) greater child acceptance of treatment, (2) parent belief in longer time course for ADHD, (3) positive differential between parent-perceived need for and concerns about medication, and (4) greater parent-perceived alliance with their child's doctor. METHODS: We conducted a prospective longitudinal cohort of 89 children aged 6 to 10 years old newly treated for ADHD by 1 of 44 pediatricians in 11 practices...
May 24, 2018: Pediatrics
https://www.readbyqxmd.com/read/29778790/applicability-of-integrated-cell-culture-reverse-transcriptase-quantitative-pcr-icc-rtqpcr-for-the-simultaneous-detection-of-the-four-human-enteric-enterovirus-species-in-disinfection-studies
#13
Hodon Ryu, Karen A Schrantz, Nichole E Brinkman, Laura A Boczek
A newly developed integrated cell culture reverse transcriptase quantitative PCR (ICC-RTqPCR) method and its applicability in UV disinfection studies is described. This method utilizes a cell culture system coupled with four RTqPCR assays to detect four species of human enterovirus (e.g., Enterovirus A, Enterovirus B, Enterovirus C and Enterovirus D). Evaluation of the RTqPCR assays was conducted with coxsackievirus A10, echovirus 30, poliovirus 1 and enterovirus 70 and resulted in 100% specificity for the tested assays...
May 17, 2018: Journal of Virological Methods
https://www.readbyqxmd.com/read/29772911/the-incidence-and-impact-of-implantable-cardioverter-defibrillator-shocks-in-the-last-phase-of-life-an-integrated-review
#14
Rik Stoevelaar, Arianne Brinkman-Stoppelenburg, Rohit E Bhagwandien, Rozemarijn L van Bruchem-Visser, Dominic Amj Theuns, Agnes van der Heide, Judith Ac Rietjens
BACKGROUND: Although the implantable cardioverter defibrillator is successful in terminating life threatening arrhythmias, it might give unwanted shocks in the last phase of life if not deactivated in a timely manner. AIMS: This integrated review aimed to provide an overview of studies reporting on implantable cardioverter defibrillator shock incidence and impact in the last phase of life. METHODS AND RESULTS: We systematically searched five electronic databases...
May 1, 2018: European Journal of Cardiovascular Nursing
https://www.readbyqxmd.com/read/29772082/child-symptoms-parent-behaviors-and-family-strain-in-long-term-survivors-of-childhood-acute-lymphoblastic-leukemia
#15
I-Chan Huang, Tara M Brinkman, Larry Mullins, Ching-Hon Pui, Leslie L Robison, Melissa M Hudson, Kevin R Krull
BACKGROUND: How family environment and parental factors affect health status and symptoms in childhood cancer survivors is understudied. We examined the influence of family cohesion, parent distress, and overprotection on child symptom burden and health-related quality of life (HRQOL) and family strain in survivors of childhood acute lymphoblastic leukemia (ALL). METHODS: Parents of 213 children treated with chemotherapy-only completed a survey when survivors were at least five-years post-diagnosis...
May 17, 2018: Psycho-oncology
https://www.readbyqxmd.com/read/29769168/pressure-wire-compared-to-microcatheter-sensing-for-coronary-fractional-flow-reserve-the-perform-study
#16
Ziad A Ali, Yasir Parviz, Matthew Brinkman, Mitsuaki Matsumura, Björn Redfors, David A Brogno, Maria D Corral, Khady N Fall, Gary S Mintz, Gregg W Stone, Akiko Maehara, Allen Jeremias, Ajay J Kirtane
AIMS: Among technologies used to assess FFR, a monorail, sensor-tipped micro pressure catheter (PC) may be advantageous for delivery and re-assessment. We sought to determine whether the larger cross-sectional area of the PC influences FFR measurements compared to the pressure wire. METHODS AND RESULTS: PERFORM was a single-center, prospective study designed to determine the precision and accuracy of the PC compared with the pressure wire (PW) for measurement of FFR...
May 15, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29760403/correlation-between-ultrasound-diagnosed-non-alcoholic-fatty-liver-and-periodontal-condition-in-a-cross-sectional-study-in-japan
#17
Takahiro Iwasaki, Akiko Hirose, Tetsuji Azuma, Tamie Ohashi, Kazutoshi Watanabe, Akihiro Obora, Fumiko Deguchi, Takao Kojima, Atsunori Isozaki, Takaaki Tomofuji
This cross-sectional study investigated the relationship between periodontal condition and ultrasound-diagnosed non-alcoholic fatty liver disease (NAFLD) in a Japanese oral health check population. A total of 1226 consecutive participant were enrolled in the study. Abdominal ultrasonography was applied to diagnose NAFLD. Of the study participants, 339 (27.7%) had ultrasonography-diagnosed NAFLD. The participants with NAFLD had a significantly higher prevalence of probing pocket depth (PPD) ≥ 4 mm (86...
May 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29760145/-in-vitro-activity-of-imipenem-relebactam-and-ceftolozane-tazobactam-against-resistant-gram-negative-bacilli
#18
Suzannah M Schmidt-Malan, Avisya J Mishra, Ammara Mushtaq, Cassandra L Brinkman, Robin Patel
Understanding which antimicrobial agents are likely to be active against Gram-negative bacilli can guide selection of antimicrobials for empiric therapy as mechanistic-based (i.e., molecular) rapid diagnostics are adopted. Here, we determined the MICs of the novel β-lactam/β-lactamase inhibitor combination, imipenem-relebactam, along with ceftolozane-tazobactam, imipenem, ertapenem, meropenem, ceftriaxone, and cefepime, against 283 multidrug resistant isolates of Gram-negative bacilli. For isolates harboring bla KPC (n=111), the addition of relebactam to imipenem lowered the MIC50 /MIC90 from 16/>128 μg/ml for imipenem alone to 0...
May 14, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29747558/increasing-awareness-and-prompting-hiv-testing-contributions-of-amsterdam-hiv-testing-week-2016
#19
C den Daas, E M Meddens, Jeam van Bergen, G J de Bree, A A Hogewoning, K Brinkman, Jbf de Wit
We evaluated Amsterdam HIV Testing Week (HTW) 2016 regarding its primary goals of raising awareness and prompting HIV testing. Participating services offered free, anonymous HIV testing, with a focus on reaching men who have sex with men (MSM) and people with a non-western migration background. Sociodemographic characteristics, HIV testing history, intention to test regularly, beliefs about personal risk and severity of HIV, and perceived social norms regarding HIV testing and people living with HIV were assessed among all who tested...
January 1, 2018: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/29734610/estimating-virus-occurrence-using-bayesian-modeling-in-multiple-drinking-water-systems-of-the-united-states
#20
Eunice A Varughese, Nichole E Brinkman, Emily M Anneken, Jennifer L Cashdollar, G Shay Fout, Edward T Furlong, Dana W Kolpin, Susan T Glassmeyer, Scott P Keely
Drinking water treatment plants rely on purification of contaminated source waters to provide communities with potable water. One group of possible contaminants are enteric viruses. Measurement of viral quantities in environmental water systems are often performed using polymerase chain reaction (PCR) or quantitative PCR (qPCR). However, true values may be underestimated due to challenges involved in a multi-step viral concentration process and due to PCR inhibition. In this study, water samples were concentrated from 25 drinking water treatment plants (DWTPs) across the US to study the occurrence of enteric viruses in source water and removal after treatment...
April 1, 2018: Science of the Total Environment
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